I needed a lot of kitchen storage for an old home I purchased that lacked adequate kitchen cabinets. This has been in use almost 6 months and has worked very well. I have every shelf  filled with canned goods and large 10-15 pound containers of dry grains, beans, rice, small kitchen appliances etc. There has been no problems with sagging. I am a 63 year old woman in average to lazy shape and had no problem putting the unit together by myself. I planning on buying two more - one for my basement and one for the garage.